Cash register



1937' E. BREITLING ET AL 2,101,636

CASH REGISTER, ACCOUNTING, AND THE LIKE MACHINE Filed Oct. 5, 1935 15 Sheets-Sheet 1 OOOOO OOOOO 'Jnvenfors Ernst Breitling nnd Hans Schwen] their Attorney 7, 1937. E. BREITLING ET AL CASH REGISTER, ACCOUNTING, AND THE LIKE MACHINE Filed Oct. 5, 1935 15 Sheets-Sheet 2 Unvenfors Ernst Braiding and Hans Schwenlt hair Attorney 1937. E. BREITLING ET AL 2,101,635

CASH REGISTER, ACCOUNTING, AND THE LIKE MACHINE Filed Oct. 5. 1955 15 Sheets-Sheet 3 fill/1'10 .kkdr'uv Rue ti :1; Id'dr'n; 1,15 -1! M7,) n an (1!!) F {135) I (1.051) I 350 'lnvenfors Ernst Braiding and Hans Schwenk their Attorney Dec. 7, 1937. 2,101,636

CASH REGISTER, ACCOUNTING, AND THE LIKE MACHINE E. BREITLING ET AL Filed Oct. 5, 1935 15 Sheets-Sheet 4 'Jnven hm Ernst Breifling and Ham Schwenk their Attorney 1937. E. BREITLING ET AL 2,101,636

CASH REGISTER, ACCOUNTING, AND THE LIKE MACHINE Filed Oct. 5; 1935 15Sheets-Sheet 5 'Jnveniors Ernst Breitling and Hans Schwenk their Attorney Dec. 7, 1937. E. BREITLING ET AL CASH REGISTER, ACCOUNTING, AND THE LIKE MACHINE Filed Oct. 5, 1955 15 Sheets-Sheet 6 Unven ors Ermt Breitling and Hans Schwenk their Aftomeg 1937. E. BREITLING ET AL 2,101,636

CASH REGISTER, ACCOUNTING, AND THE LIKE MACHINE Filed Oct. 5, 1935 15 Sheets-Sheet 7 5n ventors Ernst Breitling and Hans Schwenk their Attorneg 1937- E. BREITLING ET AL 2,101,636

CASH REGISTER, ACCOUNTING, AND THELIKE MACHINE Filed Oct. 5, 1935 15 Sheets-Sheet 8 Uh v2 n l: 0 rs Ernst Breitling and Ham Schwehk their Aitorn cg Dec. 7, 1937. BRE|TL|NG AL 2,101,636

CASH REGISTER, ACCOUNTING, AND THE LIKE MACHINE Filed Oct. 5, 1935 15 Sheets-Sheet 9 qnventors Ernst Brelthng and Hans Schwenk Dec. 7, 1937. E. BREITLING ET AL CASH REGISTER, ACCOUNTING, AND THE LIKE MACHINE Filed Oct. 5, 1935 15 Sheets-Sheet 10 {Inventors Ernst Breitling their Atturney 7, 1937. E. IBREITLING ET AL 2,101,636

CASH REGISTER, ACCOUNTING, AND THE LIKE MACHINE Filed Oct. 5, 1935 15 Sheets-Sheet ll Jnvenlnr' Ernst Breitling und Hans Schwenk their Atforn ey Dec. 7, 1937. E. BREITLING ET AL 2,101,636

CASH REGISTER, ACCOUNTING, AND- THE LIKE MACHINE Filed Oct. 5, 1955 15 Sheets-Sheet l2 inventors Ernst Breitling and Hans Schwenk their Attorney Dec. 7, 1937. E. BREITLING Er AL CASH REGISTER, ACCOUNTING, AND THE LIKE MACHINE Filed Oct. 5, 1935 15 Sheets-Sheet l3 flVBnfOrs Ernst Brin ing nd Hans Schwenk lw gait IktIOr'nBy Dec. 7, 1937. E. BREITLING ET AL CASH REGISTER, ACCOUNTING, AND THE LIKE MACHINE Filed Oct. 5, 1935 15 Sheets-Sheet 14 Inventors Ernst Breitling and Hans Schwenk their Attorney 1937. E. BREITLING ET AL 2,101,636

CASH REGISTER, ACCOUNTING, AND THE LIKE MACHINE Fild Oct. 5, 1935 15 Sheets-Sheet l5 flnveniors Ernst Breitling and Hans Schwenk their AHorney Patented Dec. 7, 1937 UNITED STATES PATENT OFFICE CASH REGISTER, ACCOUNTING, AND THE LIKE MACHINE Ernst Breitling, Berlin-Tempelhof, and Hans Schwenk, Berlin, Germany, assignors to The National Cash Register Company, Dayton, Ohio, a corporation of Maryland Application October 5, 1935, Serial No. 43,730 In Germany February 15, 1935 Claims.

ferential device, by which totalizer selection and engagement in proper timing is effected under control of various manipulative means.

The main object of the invention is to reduce the dimensions especially the length of the machine to a minimum without sacrificing any of the necessary functions or subdivisions of the amounts or totals common with such machines.

Another object of the invention is to provide a novel arrangement for totalizer engaging, in item entering and in item total taking of multi- 20 pie transactions.

Another object of the invention is to arrange novel means for transferring totals taken from one totalizer to another of the same row.

Another object of the invention is to adapt a differential device of a bank of totalizer selecting means to control engagement of two different totalizer rows.

Another object of the invention is to provide novel means for selecting a totalizer in two totalizer rows under control of one single bank of manipulative means.

Another object of the invention is to arrange an itemizing totalizer interspersed with several other totalizers of any kind, special, transaction or the like in one single row and to provide for proper selection of said different totalizers.

Another object of the invention is to provide a novel arrangement for machine release in ac-. cordance with the various transactions performed by such a machine.

Another object of the invention is to adapt a machine conditioning means to function differingly for itemizing and other transactions in amount entering and total taking actions.

Another object of the invention is to adapt said machine conditioning means for totalizer selection in total transferring actions.

Another object of the invention is to provide disabling means for the totalizer selecting means 0 in total taking especially multiple item total taking actions.

Another object of the invention is to provide novel interlocking means for the totalizer selecting manipulative means cooperating with the machine release and the. amount setting means and RElSSilEii to adapt them to function difierently in amount entering and total taking actions.

Further objects of the invention will be pointed out in the following detailed description with reference to the annexed drawings.

A preferred form of an embodiment of the invention is shown in the annexed drawings.

Of said drawings:

Fig. l is a top view of the key board of the. machine, 10

Fig. 2 is a side elevation of an amount key bank and the amount differential device cooperating therewith,

Fig. 3 is a side elevation of the special key bank and the special differential device cooperating l5 therewith,

Fig. 4 is a cross section of the shifting device for special totalizer selection,

Fig. 5 shows the shifting device of Fig. 4 evolved, 20

Fig. 6 is a side elevation of another special key bank and of the special differential device cooperating therewith,

Figs. 6a. and Gb'show a side elevation of the actuating mechanism for the amount and special difierential device and a cross section according to line VV of Fig. 6a respectively, whereas Fig. 6c is a time diagram for it,

Fig. 7 is a top view partly in section of a totalizer shifting device associated with the second 30 special key bank,

Fig. 8 is an evolution of the shifting device according to Fig. 7,

Fig. 9 is a side view of a transaction key bank and the mechanism controlled thereby positioned for total taking actions,

Fig. 10 is a like view as Fig. 9 with the mechanism positioned for adding operations,

Fig. 11 is a like view of Fig. 9 with the mechanism' positioned for itemizing actions. 40

Fig. 12 is a like view as Fig. 9 with the mechanism positioned for subtotal taking,

Fig. 13 is a like view as Fig. 9 with the first special totalizer row to be engaged for adding actions, r

Fig. 14 is a like view as Fig. 9 with the second totalizer row engaged for itemizing actions,

Fig. 15 is a like view as Fig. 9 with the third totalizer row to be engaged for total taking actions,

Fig. 16 shows a like view as Fig. 15 with the parts positioned for itemizing actions,

Fig. 17 is a side elevation'of the transaction key bank and the special diil'erential device all tt d thereto,

Fig. 18 shows in side view partly in section and Fig. 19 in top view the shifting device of the transaction totalizer row,

Fig. 20 is a side elevation of the mode of operation lever and the restoring-device for the same,

- Fig. 21 is a side view of the locking and releasing means of the second special key bank,

Fig. 22 is a side view of the transaction key bank and the machine releasing device connected therewith positioned for adding operations before release,

Fig. 23 is a side view of the machine releasin device,

Fig. 24 is a perspective view of the elements of the different special key banks cooperating with the machine releasing device,

Fig. 25 is a like view as Fig. 22 with the machine releasing device positioned after release,

Fig. 26 is a like view as Fig. 22 with the machine releasing device positioned in itemizing actions,

Fig. 27 is a side elevation of the first special key bank and the elements thereof cooperating with the machine releasing device in the position for adding operations,

Fig'. 28 is .a side elevation of the second special key bank and the elements cooperating with the machine releasing device in subtotal taking actions,

Fig. 29 is a like view as Fig. 28 with the parts positioned for total taking actions,

Fig. 33 is a part cross section of the entire machine according to line 1-1 of Fig. 17,

Fig. 34 is an evolution of the transaction totalizer shifting device,

Fig. 35 is a top view of the interlocking device for the totalizer rows selecting means.

Key board and totalizer arrangement The machine according to the invention is provided with several banks of amount keys II (Fig. 1), one bank of department keys I2, one bank of preferably insertable clerks keys divided into two groups I3 and I4, and a bank of transaction keys I5. The transaction keys I5 serve as motor .or release keys at single amount entering machine operations. During itemizing actions, however, the transaction key l5 depressed at the beginning of such a transaction remains depressed till total taking. Therefore, a special motor key I6 is arranged for machine release in itemizing operations. Before the commencement of an itemizing operation, a mode of operation or machine conditioning lever I8 having four set positions add, itemizing, read and "reset and normally set to ad has to be adjusted to itemizing. For multiple-item total taking, a multiple-item total k y H has to be depressed.

The machine is provided with four totalizer rows (Fig. 2) each row thereof-comprising suitably four totalizers of any well known type. Due to this arrangement, the clerks key bank I3, I4 comprising eight keys, has associated therewith two totalizer rows I9 and 20 (Fig. 2). A department key I2 depressed, selects a totalizer of the row 2|. The fourth totalizer row 22, finally, contains four totalizers one for transactions of cash" and paid on account (R), one for paid out" (A) one for charge (C), and an itemizing totalizer for multiple item transactions. A nosale key W is provided in the transaction bank, and, when depressed, causes the itemizing totalizer to be alined with the actuators, but no amounts can be added during a no sale operation because an interlock prevents depression of an amount key and the no sale key for the same operation.

For total taking from any of the special totalizers associated with the various kinds of special keys i2 to E5, the mode of operation lever 68 is to be set to read or rese whilst the special key 92 to B5 depressed, serves as motor key at this time as will be described hereinafter.

Key lockings The amount keys are normally locked. They are depressible only after a clerks key H3 or i l and a department key i2 has been depressed.

Each amount key bank It (Fig. 2) is provided with a. detent (it) having sloping surfaces 38 and guided by its straight slots 92 on stationary pins (iii of the key frame 56. The detent do is acted upon by a spring 4 I. When an amount key is depressed, a pin 39 arranged on the stem of it enters the appropriate slot of the detent and by engaging the surface 38 raises the detent 96 against the action of the spring lI. Each detent iii has a pin (it engaging with the machine at rest, an arm (l8 fast on a shaft 4W.

Fast on the shaft 47 are two further arms is (Fig. 21) associated with the clerks key bank it, Hi and the department key bank i2 respectively. With the machine at rest, and neither a clerks key nor a department key depressed, a locking member 58 is in the path of either arm 69 preventing the shaft 61 from being rotated in counter-clockwise direction according to Fig. 21, or in clockwise direction according to Fig. 2. Thus, no amount key I I can be depressed before the two locking members 59 are moved out of the path of the arms 49 by depressing a department key I2 and a clerk key I3, or I4. As the two locking members 50 are independent of each other, it is of no importance, whether, first, a clerk key and then a department key is depressed, or vice versa. The mechanism for disabling the locking members 50 is shown only in connection with the department key bank. The same mechanism is associated with the clerks key bank.

A slot 5| of the locking member 50 (Fig. 21) of the department key bank is engaged by a pin 52 of a. detent 53 having straight slots 54 guided on stationary pins 55 of the key bank frame 56.

The detent 53 has a slot 51 the edge 58 thereof contacting under the action of a spring 59 a pin 60 of a second detent 6| allotted to the department key bank I2. This second detent 6| too has straight slots to be guided on the pins 55 and is held by a spring 62 in normal position.

Upon depression of a department key I2, the pin 63 of the depressed key acts upon a bevelled surface 84 of the detent 6| in its appertaining slot and moves the detent downward against the action of the spring 62. At the same time the pin 63' of the depressed department key I2 acts upon a bevelled surface 65 of the detent 55 and moves it upward against "the action of the spring 59 till the pin 63 arrives beyond a hook 66. Now, under the action of the tensioned spring 59 the pin 63 of the depressed key I2 engages the hook B6 proper and the latter is held depressed thereby. During the downward movement of the de- III tent 53, which takes place only after the key I2 is fully depressed, the locking arm 50 is counterclockwisely moved out of the path of the arm 49 and thus rendered ineffective.

In the clerk key bank I3, I4 each time a single key of only one group is depressible. This is obtained by the clerk key bank having allotted thereto two detents 23, 24 (Fig; 3) guided on stationary pins 26 of the key bank frame 21 by their slots 25, and maintained in normal positions by springs 28 and 29 respectively. The detent 23 has bevelled surfaces 3I facing the pins 30 of the stems of the clerk keys I3, and radial slots 32 facing the pins 30 of the clerk keys I4, whereas the pin 30 of a depressed clerk key I4 cooperates with the bevelled surface 33 of the detent 24 and the pin 30 of a depressed key I3 enters a radial slot 34' of the detent 24.

When, for instance, a clerk key I3 has been depressed, its pin 30 acting upon the appropriate bevelled surface 3I, has raised against the action of its spring 29 the detent 23. Thereby the radial slots 32 of the detent 23 are moved out of the path of the pins 30 and beneath the pins 30 of the keys I4. Consequently, after a clerk key I3 is depressed, no key I4 can be depressed any more. However, the key I4 is locked also thereby that the pin 30 of the depressed key I3 has entered a radial slot 34 of the detent 24 thereby preventing the detent from being raised by the pin 30 of a key I4 cooperatingwith a bevelled surface 33. A pin 30 of a key I4 first depressed cooperates with the associated bevelled surface 33, raises the detent 24 against the action of the spring 28, removes the radial slots 34 of this detent out of the path of the pins 30 of the clerk keys I3 and moves arcuate surfaces or solid lugs 36 underneath these pins. Further, the pin 30 of the depressed key I4 enters a radial slot 32 of the detent 23 thereby preventing the detent 23 from being raised by the pin 30 of one of the keys I3 cooperating with the proper bevelled surface 3|.

Thus, a key of the group I3 or I4 respectively depressed, can not be released by depressing another one. The detents 23 and 24 are provided with locking surfaces 31 passing underneath the pins 30 of the remaining keys of the respective group when a key thereof is depressed and has raised the pertinent detent 23 or 24.

The transaction keys I (Fig. 9) except the no sale key W, are locked against depression, and are released upon depressing an amount key II. To lock the transaction keys a detent I65 is provided (Fig. 17) having straight slots to be guided on two stationary studs I66 of the key bank frame 12. If no amount key has been depressed, the solid parts or lugs I61 are moved underneath the pins I68 of the keys I5, so that these keys are not depressible. Only the pin I68 of the change key W is opposite a radial slot I69. Thus ,the change key W can be depressed with no amount key being depressed. The detent I65 has a pin I extending into the path of an arm I1I fast on the shaft 41. When, upon depressing an amount key II (Fig. 2), the shaft 41 is clockwisely rotated, the arm I", by means of the pin I10, raises the detent I against the action of its spring and removes the lugs I 61 from the path of the pins I68 of the four upper transaction keys I5, and the radial slot I69 from the path of the pin I68 of the no sale key W. After an amount key II has been depressed, each of the four upper transaction keys is depressible but no more the no sale key W.

Machine release by transaction keys for single amounts entering actions The transaction keys I5 have allotted thereto a detent 61 (Fig. 22) having straight slots 10 to be guided on two stationary studs H of .the key bank frame 12, and inclined slots 68 to be entered by pins 69 of the transaction keys I 5. The detent 61 has a pin 13 engaging a slot of a lever 14. The lever 14 has a second slot 15 to receive a stud 16 of a detent 11. A pin 18 of the left hand arm of the lever 14 engages an inclined slot 19 of an arm rockable on a shaft 8I. By means of a sleeve 82 the arm 80 is connected to an arm 83 (Fig. 24) a pin 84 of which is embraced by the bifurcated end 85 of a lever 81. The latter is pivoted on a stud 86 of an arm 88 of a bail 89 pivotal on the shaft 8I and has its other forked end 90 engaged by a pin 9I of an arm 92 rotatable on shaft 8I. The arm 92 is connected by means of a tube 93 to a hooked arm 94 extending normally over a projection 95 of an arm 91 pivotal on a stud 96 (Fig. 23). The arm 91 is acted upon by a spring 98 tending to rock the arm in counterclockwise direction. Such a counter-clockwise rotation is, however, normally prevented by the hooked arm 94.

A surface 99 of the arm 91 is engaged normally by a roller I00 arranged on a vertically extending projection IOI of a pitman I02. The right hand end of the pitman I02 is bifurcated to straddle on the shaft 8|, while the left hand end is linked to an arm of a multiple-armed lever I05 pivotal on a stud I04. A strong spring I06 tends to move the pitman I02 to the right, and to rock the lever I05 in clockwise direction, but is normally prevented to do so by the surface 99 of the arm 91. Two arms I01 and I08 of the lever I05 are normally within the path of laterally arranged locking pins I09 and H0 of a disk III fast on the drive shaft II2 thus preventing this shaft from rotating.

When, with the parts positioned according to Fig. 22 which corresponds to the adjustment of the mode of operation lever I8 to add, a transaction key I5 is depressed, the detent 61 is moved downward against the action of .its spring II3. Thereat the pin 13 rocks the lever 14 about the pin 16 in clockwise direction. The pin 18 partaking in this rocking movement, and by acting upon the inclined slot counter-clockwise direction viewed in Fig. 22, and in clockwise direction viewed inFig. 24. The arm 83 connected to the arm 80 rocks by the lever 81 the arm 92 in counter-clockwise direction (Fig. 24), or in clockwise direction (Fig. 23) respectively, and removes the hooked arm 94 connected thereto against the action of a spring II4 connecting the extension IOI of the pitman I02 with the hooked arm 94, from the path of the extension 95. Now the arm 91 is enabled 'to rock in counter-clockwise direction under the action of the spring 98, whereby the surface 99 is moved out of the path of the roller I 00, and a recess II5 of the arm 91 is moved into the path of the said roller, Consequently the pitman I02 is moved by the spring I06 to the right, and the lever I05 rocked clockwisely. Now the shaft H2 is enabled to be rotated clockwisely. At the end of this rotation the pin 'I I0 arranged on the other side of the disk III than the projection I09, acts upon the extension I01 and restores the lever I05 to locking position.

The lever I 05 is connected by means of a link II6 to an arm II8 fast on a release shaft H1 19 rocks the arm 80 in i (Fig. 13). When the machine is released, the spring I06 rocks the shaft II'I somewhat in counter-clockwise direction.

Selection of the totalizer rows By depressing one key of the special key banks I2, I3, I4, or I the totalizer row associated therewith is selected and engaged with a disk II9 (Figs. 13, 14). This engagement is effected by the clerk keys I3 and I4 in the following manner:

Either detent 23, 24 (Fig. 3) carries a pin I embraced by the forked end of an arm IZI of a bail I23 rotatable on a shaft I 22, the other arm I26 (Fig. 13) of which bail has arranged thereon a pin I25 engaging the forked end I26 of a lever I28 pivotal on a stud I2ll. The other arm of the lever I 23 is connected by a link I29 to a hooked arm I30 rotatable on the release shaft III.

Thus, if a key II3 has been depressed, the detent 23 (Fig. 3) is moved upward and the bail I23 as well as the hooked arm I30 by the arm 62 3 (Fig. 13), the lever I28 and the link I23 are rocked counter-clockwisely, whereat the hook ISI of the arm I3 is moved into the path of an extension I 32 of a bell crank I34 pivotal on a stud I33. On a pin I35 of the bell crank I36 a lever I33 is pivoted having the one of its arms connected by a link I37 to an arm I38 fast on the release shaft iii. The other arm of the lever I36 has loosely attached thereto a link I39 linked to an arm MI rotatable on shaft I 33. A link I62 connects the arm I li with a member Ill rotatable on shaft I63, the said member I33 being connected by a link I05 to an arm I M rotatable on a cross rod I66. The cross rod I36 is supported by two arms I50, I5I fast on the rock shaft I49 for the clerks totalizer row I9 (Fig. 2). The arm I5I contacts under the action of a spring I53 a stop I52. The arm I6? is connected by a sleeve to an arm I48 having a pin I53 enabled to enter a notch I55 in the disk H9. With the machine at rest, the release shaft III and the arm I38 are in a position according to which the link I31 is prevented from any movement to the right. A spring I56 of the bell crank I34 tends to rock clockwisely the lever I36 about a stud I51 forming the pivot of the link I31 and the lever I36. This rotation, however, can be continued only till the end I58 of the arm I4I contacts a sleeve I60 surmounted on the shaft I59.

As shown in Fig. 14, the key group I4 has allotted thereto a similar linkage to engage the second clerks totalizer row 20 (Fig. 2) with the disk II9. Corresponding parts are referred to by the same reference numerals with the index Fig. 13 shows thelinkage in the position-it occupies before a key I3 is depressed; and Fig. 14 as positioned after a key I4 has been depressed and the appropriate totalizer row 20 has been engaged with the disk II! upon releasing the machine for operation. This engaging is effected in the following manner:-

For machine release, the release shaft II! and the arm I38 fast thereon, are counter-clockwisely rotated to a certain extent whereby the link I31 is moved to the right. As the bell crank I34 is prevented by the hooked arm I30 from rocking in counter-clockwise direction, the pin I35 becomes the pivot for the lever I36. The lever I36 is rocked counter-clockwisely about the pin I35, rocking by the link I39 the arm MI and, by the link I 42', the bell crank I44 in the same direction, which movement is transmitted by the link I to the arms I 41' and I48 causing them to rock clockwisely, so that the pin I54 enters the notch I in the disk IIS. When, with the parts so positioned, the disk II9 is clockwisely rocked, the arm I48 rocks the shaft I49 clockwisely, and the adding wheels on shaft 20 are meshed with the gears differentiated by the amount difierentials.

To engage the third totalizer row 2I a. similar arrangement is made. The department keys I2 (Fig. 6)have allotted thereto a detent I6I having oblique slots I62 to be entered by the laterally extending pins I63 of the keys i2. The detent I6I has straight slots to be guided on two stationary studs I of the key bank frame 53, and a pin I I2 embraced by the forked end of an arm I2I" of a bail I23" rotatable on shaft I22 an arm I2 3 (Figs. 15, 16) of which bail moves by the parts I25" to I2i3" the hacked arm I30" into the path of the extension I32" of the lever I33", so that with the release shaft III rocking counter-clockwisely the third totalizer row 2i (Fig. 2) is engaged by the parts I35" to I38" with the disk I89.

The engagement of the fourth totalizer row' 22 (Fig. 2) with the disk H3 (Figs. 15, 16) depends in amount entering operations only upon the depression of an amount key II. When an amount key II has been depressed, a locking pawl I of the shaft (I? (Figs. 9 and 10) is moved the notch I55 of the disk II9 (Figs. 13, 16).

Thereby the fourth totalizer row 22 is engaged.

The special totalizers'allotted to the clerks and the departments, are provided to accumulate only amounts really cashed in, however, no amount of sale on charge, or amounts paid out. Therefore, when the transaction key paid out (A), or charge (C) is depressed, the engagement prepared by depressing a clerk key I3, or I4 of the pertinent totalizer row with the disk II9, has to be disabled again. This is eflected in that the pivot I21 for the levers I28, I28, and I28" (Figs. 13, 14, and 15) is arranged on an arm I" rotatable on the shaft I22 and having an edge I18 bearing against a pin I19 of a detent I guided on pins I66 of the transaction key bank frame I2. The detent I80 has only two bevelled edges I8I pertinent to the pins I68 of the paid out and charge keys. Thus, if either of said keys has been depressed, the detent I80 is raised against the action of its spring I82, whereat its pin I19 acts upon the edge I18 of the arm I" and rocks it in counter-clockwise direction. Consequently, the pin I2I of the arm I" rocks the levers I28, I28, 128" in counter-clockwise direction about the appropriate pins I25, I25, or I25" and by means of the links I29, I29, I29" the hooked arms I30, I,

I30" in clockwise direction. Thereby the hooked Totalizer engagement actuating means To actuate the disk I I8 (Figs. 30, 31, 32) three actuating arms I838, I838", I838' are provided according to the three modes of operation addition, "read" and reset. In each machine operation the actuating arms I838, I838", I838' 1 respectively, are driven by means of mutilated gears I84 and I85 actuated by a cam I83 secured to the main shaft H2 and perform equal, but at different time commencing oscillatory movements.

Adjacent to the cam disk I83 a second cam disk I83I is fixed to the main shaft II2. At the commencement of a, say adding machine operation the cam of the cam disk I83I acting upon the working surface I848 of the gear I84 locks the gears I84, I85 against the action of the spring I84I maintaining the engagement of both said gears. When the cam of the cam disk I83 has arrived at the working surface I858 of the gear I85, the cam of the cam disk I83I has freed the working surface I848 of the gear I84, so that the gear I 85 and the arm I838 is rocked clockwisely (compare Fig. 31).

Each actuator arm I838 M838", 1838" as well) has linked thereto a link I86 (I86", I86) connected by a link I81'to a member I88 pivotal on shaft I48. Like reference numerals only provided with the index and respectively are used in Figs. 31 and 32 for the parts connected with the actuating arms I838 and I838. Each of the three members I88 has a cam slot I88 engaged by a pinI88 of the mode of operationlever I8. The cam slots are differently shaped. With the lever I8 set to add or itemizing" a notch I888 of the link I86. is located above a pin I8I of the disk I I 8,

whilst the other links I86" and I86' are in a raised position (Fig. 31). Thereat the arm I838 engages the disk H8 and is oscillated by the cam disk I83 at the time proper for. adding.

When the machine conditioning lever I8 is set to subtotal taking X (Fig. 32) the link I86 is lifted in accordance with the shape of cam slots I88, whereas the link I86" is brought in engagement with the pin I88 and thus the arm I838", appertaining to subtotal taking, with the disk II8. Correspondingly the arm I838" engages the disk II8 when the conditioning lever I8 is set to total taking Z.

Therefrom it can be seen that according to the set position of the lever I8 to adding, subtotal X, total Z" the actuating arm I838 I838", I838' proper is engaged with the disk I I8 which then is rocked at the time proper for the mode of operation by a certain degree in clockwise and then in counter-clockwise direction.

When in rest position, the disk I I8 bears against a stationary stop pin I82. With the machine at rest the disk H8 is prevented by a cam I83 fast on shaft I84 from being displaced, the said cam being moved out of the path of the surface I85 of the disk II8 immediately at the beginning of the machine operation, and restored to its effective position only at the end of it when the disk H8 is again in rest position.

Amount difierentials Each amount key bank II (Fig. 2) has associated thereto a differential device. Each amount difierential consists of an actuator I86 rocked to a certain extent in each machine operation by the medium of an intermittent oscillatory drive of a type shown in Figs. 6a to 60, actuated by the main shaft I I2. All the actuators I86 are fast on a tube I81 surmounted on the shaft I58. The actuator I86 is engaged by a latch I88 pivotal on a carrier I88 rotatable on the tube I81. The carrier I 88 is connected by a spring 288 to a setting member 28I arrested in an adding action either by a zero stop pawl 282 or by the foot of the depressed key II. A pin 284 of the latch I88 is guided in an inclined slot 283 of the setting member 28I. When the setting member 28I is arrested, the actuator I86 continues its movement and, by the latch I88, also the carrier I88, first in clockwise direction against the. action of the spring 288. Thereat the pin 284 travels in the inclined slot 283 whereby the latch I88 is disengaged from the actuator I88 and moved into engagement with a notch 285 of a locking plate 286.

By the differential device differentiated, the amount set up on the amount key board is transferred also to the indicating carriers 458 and the type carriers 468 of the printer, arranged on nested tubes. For this purpose, the latch carrier I88 has pivotally mounted thereon an arcuate arm 281 having its other end linked by a beam 288 to a gear 288 rotatable on shaft 2I8. From this gear 288 the setting of the respective type carrier 458- and indicating carrier 468.is

derived. To move said type and indicating carriers by the shortest distance out of the previous position into the new one, an arcuate surface 2 of the arm 281 is forced, while the amount differential device is set, to contact the hub of the actuator I86. This is effected by an arm 2 rotatable on the main shaft II2, the said arm having a roller 2I2 rocked counter-clockwisely against the action of its spring 2I1 to engage with the arm 281 by a cam 2I5 fast on shaft 2I3 acting upon a second roller 2I6 of the arm 2I4. This is shown and described in detail in a copending application wherefore only a brief description is given herein.

After the actuators I86 have finished their clockwise rotation, the gears 288, before the said actuators start to return to rest position in coundevice not shown. Further, at this time, in an adding operation, the adding wheels 2I8 of the selected totalizer are meshed with the respective gears 2I8, each one thereof being in mesh, through an intermediate wheel 228 rotatable on shaft I43, with the toothed segment 22I of the setting member 28I.

When the actuator I86 returns in counterclockwise direction to rest position, it carries along by means of a pin 222 the pawl carrier I88, and through a second pin 223 the setting member 28I, by which during this retro-movement the engaged adding wheels are advanced by the amount set up.

To prevent the latch I 88 from being disabled unintentionally, which, for instance, due to the inertia of the setting member 28I, would be due to the initial acceleration of the differential device, a brake disk 224 on the tube I81 is provided having a slot 225 oppositely inclined'to that of the slot 283 of the differential member 28I which slot 225 is also engaged by the pin 284 of the ter-clockwise direction, are latched by a locking 

